10x4 collage of qwertyprophecy's "Monsters and Mysteries" series of posters for every episode (source and alternate layout in comments) : r/gravityfalls
Monster Falls Sketches 2 by purpleorchid-8863 on DeviantArt
Monster Falls | Gravity Falls | Know Your Meme
David Romero on Twitter: "Gravity Falls monsters https://t.co/hx5JZKbeeb" / Twitter
Gravity Falls Season 2, Monsters/antagonists | Fall drawings, Gravity falls season 2, Gravity falls
Creatures of Weirdmageddon | Gravity Falls Wiki | Fandom
Monster Falls by Mistrel-Fox on DeviantArt
Gravity Falls/Monster Falls AU - Vidéo Dailymotion
Monster Falls AU | Wiki | Gravity Falls Amino
Villains/Creatures tier list. The top one is obvious. : r/gravityfalls
David Romero on Twitter: "Gravity Falls monsters https://t.co/hx5JZKbeeb" / Twitter
List of creatures | Gravity Falls Wiki | Fandom
MONSTER BALL 8 | GRAVITY FALLS" Baby T-Shirt for Sale by TATTOODESIGN | Redbubble